they managed to clear the base of the assad loyalists and fighters. they then positioned snipers around the base, preventing, they were telling us, regime helicopters from bringing in supplies and food. they were forced to air drop supplies to this unit that was trying to keep a grip on the base. but often times they would leave supplies, when they felt the enemy was weak enough that is when they finally moved in. and they're telling us they captured a treasure trove of weapons here, machine guns, ak-47. but most importantly, the aircraft missiles, they say they found hundreds of them. even though they're not all functioning. in fact, there was video on t e youtube right after it took place, of anti-aircraft, and missiles, they had the advantage simply because of the sheer size of the arsenal, many say the balance is shifting. >> is there a sense, that one of the sides, the regime, the opposition has the upper hand where you are right now in syria? >> reporter: the rebels are slowly, slowly gaining ground. but at the same time, they have the advantage